240275531 has 2 divisors, whose sum is σ = 240275532. Its totient is φ = 240275530.

The previous prime is 240275489. The next prime is 240275533. The reversal of 240275531 is 135572042.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240275531 is a prime.

It is a super-2 number, since 2×240275531² = 115464661594663922, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 240275533, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 240275494 and 240275503.

It is not a weakly prime, because it can be changed into another prime (240275533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120137765 + 120137766.

It is an arithmetic number, because the mean of its divisors is an integer number (120137766).

Almost surely, 2^240275531 is an apocalyptic number.

240275531 is a deficient number, since it is larger than the sum of its proper divisors (1).

240275531 is an equidigital number, since it uses as much as digits as its factorization.

240275531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 240275531 is about 15500.8235587662. The cubic root of 240275531 is about 621.6842265962.

The spelling of 240275531 in words is "two hundred forty million, two hundred seventy-five thousand, five hundred thirty-one".